initdemo.java

java代码100例子

//ch3_3.java  
class A{
	int x=5;
	{	//初始化程序块开始
		System.out.println(x);
		x=6;
		System.out.println(x);
	}	//初始化程序块结束
	A(int i)
	{
            x=i;
		System.out.println(x);
	}
}
public class InitDemo
{
	public static void main (String[] args)
	{
		A a=new A(7);
	}
}